Finding the Fourth Proportional to 141,411.98, 212,106.90 and 82,209.86

Step by Step Solution

1. Step 1: Write the proportion equation
   141,411.98 : 212,106.90 = 82,209.86 : x
2. Step 2: Convert to fraction form
   141,411.98/212,106.90 = 82,209.86/x
3. Step 3: Cross multiply
   141,411.98x = 212,106.90 × 82,209.86
4. Step 4: Simplify right side
   141,411.98x = 17,437,278,554.03
5. Step 5: Solve for x
   x = 17,437,278,554.03/141,411.98
6. Step 6: Final answer
   x = 123,308.35